Wet Brush First (to Keep It Clean)

When you use a brush with Water-Based Paints, clean up is usually pretty easy. The hardest part to clean is paint that works its way up at the top of the brush. If you wet your brush with water before painting, less paint will enter that part because the water got their first.

The water got up here first, so it will help keep out paint.

I believe I saw this trick on Home Time by experts, so it can't be too bad.